Ferroresonance in Three-Phase Power Distribution Transformers
... As it has been mentioned, the less loaded the transformer is, the less the system damping and the more probable the ferroresonance becomes (during night time, weekends, holidays, etc.). For an open phase system, a very few percentage of the transformer rating can be enough to damp out the ferroreson ...
... As it has been mentioned, the less loaded the transformer is, the less the system damping and the more probable the ferroresonance becomes (during night time, weekends, holidays, etc.). For an open phase system, a very few percentage of the transformer rating can be enough to damp out the ferroreson ...
ADP3806 - uri=media.digikey
... amount of heat generated in the charger but also to stay within the power limits of the ac adapter. With the addition of a bootstrapped high side driver, the ADP3806 drives two external power NMOS transistors for a simple, lower cost power stage. ...
... amount of heat generated in the charger but also to stay within the power limits of the ac adapter. With the addition of a bootstrapped high side driver, the ADP3806 drives two external power NMOS transistors for a simple, lower cost power stage. ...
Amplifier Transistors
... suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters whi ...
... suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters whi ...
High Step-Up Converter With Coupled
... to operate with soft switching in a pulse-width-modulation (PWM) manner without high voltage and current stresses. Unfortunately, the voltage gain is limited below four in order to achieve the function of soft switching. In [8] and [9], coupled inductors were employed to provide a high step-up ratio ...
... to operate with soft switching in a pulse-width-modulation (PWM) manner without high voltage and current stresses. Unfortunately, the voltage gain is limited below four in order to achieve the function of soft switching. In [8] and [9], coupled inductors were employed to provide a high step-up ratio ...
Transformer Polarity
... The Importance of Polarity An understanding of polarity is essential to correctly construct three-phase transformer banks and to properly parallel single or three-phase transformers with existing electrical systems. A knowledge of polarity is also required to connect potential and current transforme ...
... The Importance of Polarity An understanding of polarity is essential to correctly construct three-phase transformer banks and to properly parallel single or three-phase transformers with existing electrical systems. A knowledge of polarity is also required to connect potential and current transforme ...
Low-Cost AC Solid-State Relay With MOSFETs
... A solid-state relay (SSR) is an electronic switching device that switches on or off when a small external voltage is applied across its control terminals. SSRs consist of an input logic to respond to an appropriate input (control signal), a solid-state electronic switching device to switch power to ...
... A solid-state relay (SSR) is an electronic switching device that switches on or off when a small external voltage is applied across its control terminals. SSRs consist of an input logic to respond to an appropriate input (control signal), a solid-state electronic switching device to switch power to ...
NCP1207A, NCP1207B PWM Current
... The NCP1207A/B combines a true current mode modulator and a demagnetization detector to ensure full borderline/critical Conduction Mode in any load/line conditions and minimum drain voltage switching (Quasi-Resonant operation). Due to its inherent skip cycle capability, the controller enters burst m ...
... The NCP1207A/B combines a true current mode modulator and a demagnetization detector to ensure full borderline/critical Conduction Mode in any load/line conditions and minimum drain voltage switching (Quasi-Resonant operation). Due to its inherent skip cycle capability, the controller enters burst m ...
A Topical Index of TI Supply Voltage Supervisor
... Understanding how to apply sensitivity analysis in a real circuit design: SLVA481. In a power-supply design, tolerance in component values and reference voltages and currents causes deviation to the desired system output. However, the deviation of the system output resulting from a variation of each ...
... Understanding how to apply sensitivity analysis in a real circuit design: SLVA481. In a power-supply design, tolerance in component values and reference voltages and currents causes deviation to the desired system output. However, the deviation of the system output resulting from a variation of each ...
Effects of Power Supply Resonances in Onset Studies of
... voltage spikes rising several hundred volts from a 350 V baseline, each lasting several µs. Different conclusions about the physical nature of the voltage hash would be drawn if each of these measurements were inspected separately—but from the discussion of Sec. III.A, the correct interpretation of ...
... voltage spikes rising several hundred volts from a 350 V baseline, each lasting several µs. Different conclusions about the physical nature of the voltage hash would be drawn if each of these measurements were inspected separately—but from the discussion of Sec. III.A, the correct interpretation of ...
DLD101 Features Mechanical Data
... Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use o ...
... Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use o ...
50 ppm/C Max, 50 uA, CMOS Voltage Reference
... This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete devi ...
... This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete devi ...
UCC2581 数据资料 dataSheet 下载
... from VDD to GND, 1.0µF capacitor from REF to GND, RT1 = 680kΩ, RT2 = 12kΩ, CT = 750pF and TA = TJ. ...
... from VDD to GND, 1.0µF capacitor from REF to GND, RT1 = 680kΩ, RT2 = 12kΩ, CT = 750pF and TA = TJ. ...
AAT4625 数据资料DataSheet下载
... drop below the AAT4625's under-voltage lockout threshold. This drop in voltage would cause the AAT4625 to turn off until the input power supply voltage level recovers. Since this cycle would be self-perpetuating, the entire circuit could be seen to be unstable. In the very rare case where capacitor ...
... drop below the AAT4625's under-voltage lockout threshold. This drop in voltage would cause the AAT4625 to turn off until the input power supply voltage level recovers. Since this cycle would be self-perpetuating, the entire circuit could be seen to be unstable. In the very rare case where capacitor ...
Negative-Sequence Impedance Directional Element
... 50QR), and a positive-sequence current restraint factor (a2). The settings Z2F and Z2R are the main settings for this directional element. Since a reverse fault gives a negative-sequence impedance which is positive and a forward fault gives a negativesequence impedance which is negative, Z2R is alwa ...
... 50QR), and a positive-sequence current restraint factor (a2). The settings Z2F and Z2R are the main settings for this directional element. Since a reverse fault gives a negative-sequence impedance which is positive and a forward fault gives a negativesequence impedance which is negative, Z2R is alwa ...
Framework and Research Methodology of Short-Timescale Pulsed Power Phenomena in
... The datasheet-based device-level SOA is helpful but does not demonstrate the system ratings. A new concept, called “systemlevel SOA” (SSOA), is proposed in this paper. SSOA is not only determined by the operation conditions, such as voltage and current, but also by many other circuit parameters. For ...
... The datasheet-based device-level SOA is helpful but does not demonstrate the system ratings. A new concept, called “systemlevel SOA” (SSOA), is proposed in this paper. SSOA is not only determined by the operation conditions, such as voltage and current, but also by many other circuit parameters. For ...
Input-current-shaper based on a modified SEPIC
... will be a reality. The limits on the current harmonics imposed by EN61000-3-2 have been one of the driving forces in the past decade concerning research in the field of Power Factor Correction (PFC) and Input Current Shaping (ICs). For many applications, the main goal is not to achieve unity Power F ...
... will be a reality. The limits on the current harmonics imposed by EN61000-3-2 have been one of the driving forces in the past decade concerning research in the field of Power Factor Correction (PFC) and Input Current Shaping (ICs). For many applications, the main goal is not to achieve unity Power F ...
Mercury-arc valve
A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier is a type of electrical rectifier used for converting high-voltage or high-current alternating current (AC) into direct current (DC). It is a type of cold cathode gas-filled tube, but is unusual in that the cathode, instead of being solid, is made from a pool of liquid mercury and is therefore self-restoring. As a result, mercury-arc valves were much more rugged, long-lasting and could carry much higher currents than most other types of gas discharge tube.Invented in 1902 by Peter Cooper Hewitt, mercury-arc rectifiers were used to provide power for industrial motors, electric railways, streetcars, and electric locomotives, as well as for radio transmitters and for high-voltage direct current (HVDC) power transmission. They were the primary method of high power rectification before the advent of semiconductor rectifiers, such as diodes, thyristors and gate turn-off thyristors (GTOs) in the 1970s.